Lie on the fly: Iterative voting center with manipulative voters

Lihi Naamani-Dery, Svetlana Obraztsova, Zinovi Rabinovich, Meir Kalech

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review


Manipulation can be performed when intermediate voting results are known; voters might attempt to vote strategically and try and manipulate the results during an iterative voting process. When only partial voting preferences are available, preference elicitation is necessary. In this paper, we combine two approaches of iterative processes: iterative preference elicitation and iterative voting and study the outcome and performance of a setting where manipulative voters submit partial preferences. We provide practical algorithms for manipulation under the Borda voting rule and evaluate those using different voting centers: the Careful voting center that tries to avoid manipulation and the Naive voting center. We show that in practice, manipulation happens in a low percentage of the settings and has a low impact on the final outcome. The Careful voting center reduces manipulation even further.

Original languageEnglish
Title of host publicationIJCAI 2015 - Proceedings of the 24th International Joint Conference on Artificial Intelligence
EditorsMichael Wooldridge, Qiang Yang
Number of pages7
ISBN (Electronic)9781577357384
StatePublished - 1 Jan 2015
Event24th International Joint Conference on Artificial Intelligence, IJCAI 2015 - Buenos Aires, Argentina
Duration: 25 Jul 201531 Jul 2015

Publication series

NameIJCAI International Joint Conference on Artificial Intelligence


Conference24th International Joint Conference on Artificial Intelligence, IJCAI 2015
CityBuenos Aires

All Science Journal Classification (ASJC) codes

  • Artificial Intelligence

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